inadvertently
adv. 无意地，不经意地
例句
We had inadvertently left without paying the bill.
我们无意之中未付账就离开了。
《牛津词典》
You may have inadvertently pressed the wrong button.
你也许无意中按错了按钮。
《柯林斯英汉双解大词典》
He inadvertently broke the glass.
他不经意把杯子打碎了。
《新英汉大辞典》
